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Is that the 'Programmer' or the 'Full Sequence Ignition Controller'? Sorry new to this game!

I wonder if you could help me, I have a Powermax 185 boiler - the hot water is working fine (firing up the green burner light) but I cant seem to get the central heating to come on. It may be worth noting the two little red lights (heating and water) on the programmer panel are alot dimmer then...